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cmd/geth: add db-command to inspect freezer index (#22633)

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This PR makes it easier to inspect the freezer index, which could be useful to investigate things like #22111
This commit is contained in:
Martin Holst Swende
2021-04-13 15:45:30 +02:00
committed by GitHub
parent 6c27d8f996
commit 271e5b7fc9
5 changed files with 72 additions and 15 deletions
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19
core/rawdb/freezer_table.go
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@ -636,25 +636,24 @@ func (t *freezerTable) Sync() error {
return t.head.Sync()
}
// printIndex is a debug print utility function for testing
func (t *freezerTable) printIndex() {
// DumpIndex is a debug print utility function, mainly for testing. It can also
// be used to analyse a live freezer table index.
func (t *freezerTable) DumpIndex(start, stop int64) {
buf := make([]byte, indexEntrySize)
fmt.Printf("|-----------------|\n")
fmt.Printf("| fileno | offset |\n")
fmt.Printf("|--------+--------|\n")
fmt.Printf("| number | fileno | offset |\n")
fmt.Printf("|--------|--------|--------|\n")
for i := uint64(0); ; i++ {
for i := uint64(start); ; i++ {
if _, err := t.index.ReadAt(buf, int64(i*indexEntrySize)); err != nil {
break
}
var entry indexEntry
entry.unmarshalBinary(buf)
fmt.Printf("| %03d | %03d | \n", entry.filenum, entry.offset)
if i > 100 {
fmt.Printf(" ... \n")
fmt.Printf("| %03d | %03d | %03d | \n", i, entry.filenum, entry.offset)
if stop > 0 && i >= uint64(stop) {
break
}
}
fmt.Printf("|-----------------|\n")
fmt.Printf("|--------------------------|\n")
}